What kind of bug is this?

[Shobloth]

Looks like a pill bug of some kind

 

[swhobbie1]

looks like some kind of isopod

 

[cloak]

+1

http://reefkeeping.com/issues/2002-05/rs/

 

[Shobloth]

+1



http://reefkeeping.com/issues/2002-05/rs/

I read that, it looks like the harmful one but I've never seen it in a fish. It got my attn the other night when I saw a little puff of detritus come out of the live rock, when I looked in a hole with a light thats what was looking back at me. It's about 1.5 inches long and a flat UFO like body with 2 long black antennas and 2 beady black eyes

 

[Sugar Magnolia]

That's a harmless sphaeromatid isopod.